Water flows through a pipe of

radius 0.0250 m at 1.50 m/s.

The pipe narrows to a radius of

0.0100 m. What is the new

velocity of the water?

(Unit = m/s)

Does the construction of a high building slow down the rotation of the earth

Wires used for electrical connections in a rotisserie should be insulated with a. mica. b. hard rubber. c. thermoplastic. d. fiberglass.

A metal wire of resistance R is cut into two pieces of equal length. The two pieces are connected together side by side. Part A What is the resistance of the two connected wires?

A 100-n force has a horizontal component of 80 n and a vertical component of 60 n. the force is applied to a box which rests on a level frictionless floor. the cart starts from rest, and moves 2.0 m horizontally along the floor.

Find the Cartesian components of force PP acting in the x, y, and z directions given P=50.0 NP=50.0 N, α=143.5∘α=143.5∘, β = 70.0∘β = 70.0∘, and γ=60.9∘γ=60.9∘.

A 1000 kg satellite and a 2000 kg satellite follow exactly the same orbit around the earth. What is the ratio F1/F2 of the gravitational force on the first satellite to that on the second satellite?

How does the skater's kinetic energy changes as he moves down the ramp?

A 50.0kg bicyclist on a 10.0kg bicycle speeds up from a 5.00m/s to 10.0m/s

How tightly does mass need to be compacted in order to become a black hole? (2 words)

2NaClO = 2NaCl + O2 what kind of reaction is happening